Automatic expansion shower head for kitchen sink

ABSTRACT

The present invention provides an automatic telescope shower head set for kitchen sink, which is typically comprised of a main body, a shower head and a restoring spring; wherein said main body has a fitting set upon the top end for connecting to the outlet end of a delivery hose, and a tube set upon the center; said shower head has a shroud tube built upon the top end for containing into the inside of the tube of the main body, cooperating to the delivery hose, the fitting, the tube and the shower head, to construct the water flowing channel, there are a pair of opposite a reversion fin and a crowned collar built upon the inside wall of the tube and the outside wall of the shroud tube respectively so that the both ends of the restoring spring touch against the opposite faces of said inversion fin and said crowned collar, thereby the restoring force of the restoring spring pushing the shroud tube up bringing the shower head to restore the original position, there are sealing loops set upon the contacting surfaces of each pair of adjacent components. The structure makes the volume of the faucet reduce, and prevents the shower head from striking damage, and facilitates to using and storing.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a faucet for kitchen sink, and moreparticularly to an automatic telescope shower head hidden at inside offaucet of kitchen sink.

2. Description of Prior Art

In accordance with the conventional technology, the most of thestructure of the shower head located on the side of the kitchen sink isabout showed in FIG. 1, in which the shower head 4′ is fixed on the tipend of the delivery hose 2′ that pull through the faucet 1′, and theshower head 4′ is exposed at outside in front of outlet of the faucet 1′located on the top side of the kitchen sink, said delivery hose 2′ isattached with a balance weight 3′ hung over at the segment under theworking top.

In idle, said shower head 4′ is drew under the weight force coming fromthe balance weight 3′ back clamped at the outside of the outlet of thefaucet 1′; in using, just need to draw out the shower head 4′ so as toextend out from the faucet 1′ for use; after using, just need to let itfree, the shower head 4′ loosed extra force is pulled back in theoriginal position under the pulling force coming from the balance weight3′.

For facilitating to drawing out, said shower head 4′ is designed toremain a portion extended out from the faucet 1′ in idle time, so thatthe volume of said faucet set becomes bigger than the expectation,meanwhile the exposed portion of the shower head 4′ is also damaged bystriking.

Later, for solving the problem of said exposed shower head 4′, a faucethidden shower head 4′ at inside came out, as shown in FIG. 2, thestructures of said shower head 4′, delivery hose 2′ and balance weight3′ are not changed in design, wherein said faucet 1′ has a bell mouthwith a slot 11″ for hiding the shower head 4″ at inside, by means of acrowning button 41″ set upon the side trunk of the shower head 4″catching in said slot 11″, shower head 4″ is located at the inside ofthe bell mouth of the faucet 1″.

But, in each using time, drawing out said shower head 4″ has to pressdown the button 41″ firstly so as to make it slide out from the catchingslot 11″ facilitating to drawing the shower head 4″ to any where atwill, so the excess operation puts the user into inconvenience; andafter each use time, the user has to push the shower head 4″ into thebell mouth of the faucet 1″ with extra force so that the button 41″ islocated in the end of the catching slot 11″, therefore, the excessoperations are boring to the user.

This is the sake of discovering the present invention.

OBJECTS AND SUMMARY OF THE INVENTION

It is therefore a main object of the present invention to provide anautomatic telescope shower head set for kitchen sink facilitating tousing and reserving with smaller volume, and avoiding striking damage.

For achieving the above-mentioned object, the present invention providesan automatic telescope shower head set for kitchen sink typicallycomprised of a main body, a shower head and a restoring spring; whereinsaid main body has a fitting set upon the top end for connecting to theoutlet end of a delivery hose, and a tube set upon the center; saidshower head has a shroud tube built upon the top end for containing intothe inside of the tube of the main body, cooperating to the deliveryhose, the fitting, the tube and the shower head, to construct the waterflowing channel, there are a pair of opposite a reversion fin and acrowned collar built upon the inside wall of the tube and the outsidewall of the shroud tube respectively so that the both ends of therestoring spring touch against the opposite faces of said inversion finand said crowned collar, thereby the restoring force of the restoringspring pushing the shroud tube up bringing the shower head to restorethe original position, there are sealing loops set upon the contactingsurfaces of each pair of adjacent components.

Said fitting and said main body can be molded individually into towparts, and can be secured into one component via thread-joint, in thesame way, said shroud tube and the shower head can be also molded towparts independently, and can be connected together by securingconnection facilitating to assembling and disassembling.

Said main body has a housing built on bottom downward for supplying aspace containing the shower head moving down-up under the water pressureor the restoring spring working as sliding out or sliding back inoriginal position.

Said fitting extends a guiding tube axially downward located at theinside of the tube of the main body, coordinating it, said shroud tubehas an axial ring groove built on the circle wall for fitting on saidguiding tube of said fitting in up-down moving connection.

As utilizing above-mentioned project, the present invention is at leastcomprised of said main body assembly and shower head assembly, by meansof restoring spring set upon between them used for repositioning, so ascombining the present invention into the faucet, when no water pressureexerting in, the shower head is pushed up at the home position by therestoring spring hiding into the faucet fully via the size control indesign, so that the volume of the whole faucet is controlled intominimal level to prevent the shower head from striking damage, andfacilitating to using and storing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a part cross-section view of the first prior art.

FIG. 2 is a part cross-section view of the second prior art.

FIG. 3 is a part cross-section view showing the idle state of thepresent invention.

FIG. 4 is a part cross-section view showing the using state of thepresent invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Referring to FIG. 3 and FIG. 4, the preferred embodiment of the presentinvention is set upon the tip end of the faucet 8. An automatictelescope shower head set for kitchen sink discovered by the presentinvention is typically comprised of a main body 4, a shower head 5 and arestoring spring 3.

Wherein, said main body 4 has a fitting 1 built upon the top end, forfacilitating to assembling and disassembling, said fitting 1 and saidmain body 4 can be molded individually into tow parts, and can besecured into one component via thread-joint. Said fitting 1 is used forconnecting to the outlet end of a delivery hose 6. Said main body 4 hasa tube 41 formed at center.

Said shower head 5 has a shroud tube 2 built on the top end, forfacilitating to assembling and disassembling, said shroud tube 2 andsaid shower head 5 can be also molded tow parts independently, and canbe connected together by securing connection. Said shroud tube 2 is putinto the inside of the tube 41 of the main body 4, and cooperating tothe delivery hose, the fitting, the tube and the shower head, toconstruct the water flowing channel. There are a pair of opposite areversion fm 42 and a crowned collar 21 built upon the inside wall ofthe tube 4 and the outside wall of the shroud tube 2 respectively.

Said restoring spring 3 is put over the outside wall of the shroud tube2, and located on the reversion fin 42 and the crowned collar 21 withboth ends, thereby the restoring force of the restoring spring 3 pushingthe shroud tube 2 up bringing the shower head 5 to restore the originalposition.

There are sealing loops 7 set upon the contacting surfaces of each pairof adjacent components.

For further improving the shroud tube 2 to slide up-down smoothly in thetube 41, said fitting 1 extends a guiding tube 11 axially downward,which can be molded into one whole body with the fitting 1, or moldedinto one individual part securing on the independent fitting 1 also (itis shown as later structure in this embodiment), said guiding tube 11stretches into the inside of the tube 41 of the main body 4,coordinating it, said shroud tube 2 has an axial ring groove 22 built onthe circle wall for fitting on said guiding tube 11 of said fitting 1 inup-down moving connection.

In this embodiment, said main body 4 has a housing 43 for supplying aspace containing the shower head 5 moving down-up under the waterpressure or the restoring spring 5 working as sliding out or slidingback in original position, thereby preventing the shower head 5 fromdamaging by striking of the faucet 8 as withdrawing back.

The combined faucet is in idle state, such as in natural state withoutany water pressure exerting on it, as shown in FIG. 3, as same as theconventional goods, under the balance force coming from the balanceweight located on the delivery hose 6 (not shown in drawings), thepresent invention is hidden into the mouth of the faucet 8, by means ofthe restoring spring 3 pushing up the shower head 5 into the homeposition fully, by the size control in design, the volume of the wholefaucet 8 is controlled into minimal level to prevent the shower head 5from striking damage.

When cutting on water in using, as shown in FIG. 4, water flows throughthe delivery hose 6, the fitting 1, the shroud tube 2 entering theinside of the shower head 5, due to the water pressure exerting on theshower head 5, a pushing force coming from water presses the shower head5 to move down overcoming the restoring force of the restoring spring 3,so as to extend out from the faucet 8 facilitating to draw out for use,and especially to the multipurpose shower head, this design isconvenience of switching function operation.

When finishing use by cutting out water, the water pressure iseliminated, the shower head 5 is pushed up by the restoring force comingfrom the restoring spring 3 until to get into original position, asshown in FIG. 3, facilitating to storing.

The present invention is at least comprised of said main body assemblyand shower head assembly connected together in socket joint, by means ofrestoring spring 3 set upon the joint portions of them used forrepositioning, so as combining the present invention into the faucet 8,such as the main body 4 connecting to the delivery hose 6, cooperatingto the water pressure, the shower head 5 is pushed out or pushed up atthe home position by the restoring spring hiding into the faucet 8 fullyvia the size control in design, so that the volume of the whole faucet 8is controlled into minimal level to prevent the shower head 5 fromstriking damage, and facilitating to using and storing. Concerning tothe detail assembling ways of the main body 4 and the shower head 5,they are not limited by the embodiment described above.

1. An automatic telescope shower head set for kitchen sink typicallycomprised of a main body, a shower head and a restoring spring; whereinsaid main body has a fitting set upon the top end for connecting to theoutlet end of a delivery hose, and a tube set upon the center; saidshower head has a shroud tube built upon the top end for containing intothe inside of the tube of the main body, cooperating to the deliveryhose, the fitting, the tube and the shower head, to construct the waterflowing channel, there are a pair of opposite a reversion fin and acrowned collar built upon the inside wall of the tube and the outsidewall of the shroud tube respectively so that the both ends of therestoring spring touch against the opposite faces of said inversion finand said crowned collar, thereby the restoring force of the restoringspring pushing the shroud tube up bringing the shower head to restorethe original position, there are sealing loops set upon the contactingsurfaces of each pair of adjacent components.
 2. An automatic telescopeshower head set for kitchen sink as claimed in claim 1, wherein saidfitting and said main body can be molded individually into tow parts,and can be secured into one component via thread-joint, in the same way,said shroud tube and the shower head can be also molded tow partsindependently, and can be connected together by securing connection. 3.An automatic telescope shower head set for kitchen sink as claimed inclaim 1, wherein said main body has a housing built on the bottomdownward for supplying a space containing the shower head moving down-upunder the water pressure or the restoring spring working as sliding outor sliding back in original position.
 4. An automatic telescope showerhead set for kitchen sink as claimed in claim 1, wherein said fittingextends a guiding tube axially downward located at the inside of thetube of the main body, coordinating it, said shroud tube has an axialring groove built on the circle wall for fitting on said guiding tube ofsaid fitting in up-down moving connection.